Improvement in combined cooking-stoves and steam-heaters



E. BACKUS.

Combined Cooking-Stove and Steam-Heaters. N o. 132,129. Patented om. 15,1872.

UNITED STATES PATENT FFICE.

EDWARD BAOKUS, OF ROCHESTER, NEW YORK.

Specification forming part of Letters Patent No. 132,129, dated October 15, 1872.

To allwhom fit may concern:

Be it known that I, EDWARD BlieKUs, of Rochester, in the county of Monroe and State of New York, have invented a certain Improved Combined Gooking-Stove and Steam- Heater, of which thefollowing is a speciiication:

My 'invention consists more especially in the combination of a cooking-stove with a steam heating apparatus in such a manner that the devices may be used for either purpose independently or both simultaneously; and it furthermore consists in a peculiar construction and arrangement of the grates, fire-chambers, and other parts of the apparatus, whereby the fire may be increased or diminished, the heat utilized, and the whole made convenient and economical.

Figure 1 is a vertical longitudinal section of `my invention. Fig. 2 is a transverse section at the dotted line x in Fig. 1. Fig. 3 is a similar section at thedotted line y.

A in the drawing represents the outer case of my apparatus, which is similar in form to an ordinary cooking-stove. B is an elevated oven, around which the smoke passes from the flue E in its passage to the chimney. C is a fire-grate, iixed in an inclined position in the base of the fire-pot F, and D is a nre-chamber under the griddle-holes a of the stove, through which the-products of combustionpass to the iiue E. Gr is another grate, placed in a horizontal position at the base of the fire-pot H, and arranged to be shaken or dumped in the ordinary manner. Apassage, s, from one repot to the other allows coals to drop or to be introduced from F to H. I, J, and K are firechambers, into which the products of combustion from either or both the grates may pass, and said chambers communicate with each other by means of passages b, c, and d, and finally with the line E at i, Fig. 1. A passage, g, is also provided from the chamber K to D, which may be covered witha damper, h, and said damper is arranged to turn upon pivots in such a manner as to either close the passage g, or to shut off communication from D to E by closing the passage g', but never both at the same time, as will be seen by reference to Fig. 1. The fire-pots F and H are inclosed by double Walls, between which are the Waterspaces ff and f", and the firechambers l, J,

and K are also nea-rly surrounded by such Water-spaces and the water bottom and back f, as indicated in Fig. 1. These water-spaces communicate with each other at suitable points, and steam is generated in them, which rises into the steam-chamber p under the oven, from whence it is conveyed away to be used for heating purposes. It may be found desirable, also, to locate nests of water-tubes a in the `chambers l J K, which have suitable conneetions, at top and bottom, with the Water-spaces, thus adding largely to the heating-surface; and in order to gain ready access' to these tubes, and also to the chambers, for the purpose of cleaning, doors Z, Fig. 3, are provided, opening into the chambers from one or both sides of the heater, the waterspaces not eX- tending over this portion of it.

It Will be seen that, owing to the inclination of the grate C, coals will fall down into the fire-pot H, and the ashes therefrom Will pass down the inclined water-leg 0 into the ash-pan L, into which ashes from G also drop. The fire-box F thus becomes a reservoir or feeder for the grate G, and a iire kindled upon the grate G will gradually pass down into the firebox H, fresh coal being fed into the fire-box Fmeantime, so as to continue both fires. The object of this arrangement is' to increase the capacity of the fire, the upper one being used for cooking, the products of combustion passing through D to E, and the lower one heating the water in generating steam, the products of combustion passing through the cham-pA bers I, J, and K, and parting with their heat upon the surfaces therein exposed.

My invention operates as follows: Fire having been built uponthe'grate 0Which soon communicates With G, as described, and the damper lz. turned to close the passage g, the products of combustion from the grate (J pass through the chamber D, heating the vessels in the griddle-holes c, and from thence to the oven and chimney. The ame and smoke of the lower fire likewise pass through the passages b, c, and d, and chambers I, J, and K, as indicated by the arrows in Fig. 1, generating steam for heating purposes. When no cooking is to be done, the damper h is turned up, closing the passage g and opening g, by means of which the heat of both fires is directed through the chambers I, J, and K. On

the other hand, when it is desirable to throw all the heat into the chamber D the damper f5 may be closed, directing all the products of combustion upward through D and g.

During the Warm season of the year, when I the heater is not Wanted, an eXtra section of grate may be placed across the passage s, as indicated in dotted lines, the damper i closed, and the-upper re only used, the spaces becoming simply a hot-water reservoir.

In the practical construction of my apparatus the Water-spaces f and o at the sides of tom f acquires and retains nearly the temperature of that in the upper portions of the apparatus-a result not possible except by creating a thorough circulation.

What I claim as my invention is- 1. The inclined grate C and horizontal grate G, arranged to act separately or together, substantially as and for the purposes set forth.

2. A combined cooking-stove and steamheater, embracing in its construction the repots F and H, arranged as described, and the combustion-chambers I, J, and K, all partly or Wholly surrounded by the Water-spaces f, f', and f and operating substantially in the manner set forth.

3. A combined cookingstove and steamheater, embracing in its construction the {irepot-s F and H, combustion-chambers I J K, damper h, and rear iiue E, operating substantially in the manner described.

EDWARD BAOKUS.

Witnesses:

WM. S. LoUGHBoRoUGH, IOWA H. CHILD. 

